Definition: Hexachlorophene is a chemical compound that has been used in various applications, including as a pigment and a greenhouse gas. It was first synthesized in 1972 by the University of California at Berkeley using the process known as "hexagonal formation," which involves the addition of hydrogen chloride to form hexachloroethane. Hexachlorophene is not a toxic substance but can be hazardous if ingested or inhaled, and it has been used for various purposes such